• T 



40 UNITED STATES AND MEXICAN BOUNDARY. 



Malvaviscus Drummondii, Torr. & Gray, Fl. \,p. 230; Gray, Gen. 111. 2. t. 131. South- 

 western and central Texas ; Thurher, Schott. The baccate fruit is red when ripe. 



w 



KosTELETZKYA (Orthopetalum) paxiculatAj BentJi. PL Hartiv. f. 285. Mountain pass near 

 Cocospera river ; September ; Scliott. Corollaj deep rose color. Bentham regards this 

 plant as the type of a distinct section or, perhaps, genus, diflfering from Kosteletzkya in the erect 

 convolute petals. 



Hibiscus CouLTERi, Harvey in Gray ^ PI. Wright^ 1, p. 23. Western Texas, near the Rio 

 Grande ; June — October. 



Hibiscus 



GraVy I. c. p. 23. Gravelly 



of the Rio Grande, from El Paso down to the Cibolo ; May — September ; Parry ^ Bigelow. 

 Hibiscus cardiophyllus, Gray^ ?. c.p. 22. Dry limestone hills near the mouth of the Pecos - 



September — October ; Scl 



) Canon near Cocospera and 



Ymuris, Sonora ; October — November ; Schott. Mr. Schott informs me that this plant is called 

 Algodoncello by the Sonorians. 



BYTTNERIACEiE. 



Melochia PYRAMiDATA, Linii ; Gray, Gen. III. 2. p. 1 34 and PI, Lindh. p. 165. Western 

 Texas ; Schott, Bigeloio. 



Melochia tomentosa, Linn ; DC. Prodr, l,p. 490. On the lower Rio Grande; Schott. 

 Waltheria detoxsa, Gray, PI. Wright, 2, p. 24. Magdalena, Sonora ; Thurher. 

 Hermannia Texana, Gray, Gen. III. 2, p. 88. t. 135. Bavlnes of Devil's river and plains 



mouth 







Wrigh*.. Ij p. 24, 2, p. 24. Dry rocky ravines, Van 



Horn's Well 



Atenia microphyllAj Gray, I. c. Rocky hills of the Rio Grande, near and below El Paso ; 



Parry, Bigeloxu. 



TILIACE^. 



CoRCHORUS PiLOLOBus, im^ ; Gray, PI. Wright, 1, p. 24. Gravelly beach of the Islaad of 

 Lost Rocks, lower Rio Grande, September ; Schott. Santa Rosa valley ; Parry. 



LmACE^.; 



LiNUM MULiicAULE, HooTc, in Torr. & Gray, FL I, p. 698; Engelm. in Gray, PI. Wright, I. p. 

 27. Valley of the Limpio ; July ; Bigelow. 



LiNUM Berlafdieri, Book. Bot. Mag. t. 3,480 ; Engelm. I. c. Live Oak creek and rocky 

 places on the Rio Grande ; also in Chihuahua. 



LiNUM PERENNE, Linn; Engelm. I. c. Plains between the Limpia and the Rio Grande, and 

 westward to the Gila. 



LiNUM RiGiDUM, Pursk; Engelm. I. c. Gravelly hills from El Paso to* San Eleazario ; April 

 June. 



LiNUM RUPESTRE, Engelm. in Gray, PI. Lindh. 2, p. 232. Rocky places on the Limpia and 

 Rio Grande. 



